1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a61fbb76aea3218168b166721227b8dfca151d3fb72fa228445e4131f117438. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14dc5d89-f2f8-4da8-abb2-4b9dd7c349c2.json and https://artists.proofprofile.net/proofs/artist/14dc5d89-f2f8-4da8-abb2-4b9dd7c349c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The ChiChi Yayo Tape, Vol. 1 (Picture me Drillin')
The ChiChi Yayo Tape, Vol. 2 (Picture me Trappin')
The ChiChi Yayo Tape, Vol. 3 (Diggin' in the Gravez 2016-2020)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e8c22e37aa989a6ee97af5b472c83eec655eadb666b038ff9885a16b243874. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52400168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7a6f2a569d6e69f9cf0cc63c57bc45fff5a450f032323035223dd70a5c3f11. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEQ2419311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9649d8cdadede2275b240d86d8cce9942af4a57188accb4fd6c7e24a3279f064. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBD2435384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6cda7187495f92f001cbd2f2954f276bdae2e7d9e49ddf272adcff02d0e5ac. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52584371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55a31cdeda9623e8ce4ceec3fcd9f81f682bb3ae1a4077c83cacfad04d71dde. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWZ2547297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff1f76ce9a0b39e519f9a04eb8e1dd22006434e2fb988cd1d799a1023ef25f8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7P2580247.